Auth bypass in Sonatype Nexus Repository 3
CVE-2026-17601
A user holding a permission to update privilege definitions could modify a wildcard privilege already assigned to their own role to grant broader permissions than they were authorized to hold, including full administrative access, without any additional authorization check or role reassignment.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (44.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Sonatype Nexus Repository 3 — versions 3.19.0
- Sonatype Nexus Repository Manager
Weakness classification (CWE)
References
- 103e4ec9-0a87-450b-af77-479448ddef11 (Release Notes, patch)
- 103e4ec9-0a87-450b-af77-479448ddef11 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-17601?
- CVE-2026-17601 is a high-severity vulnerability in Sonatype Nexus Repository 3, classified under Missing Authorization. CVSS score: 7.2/10. Published 2026-08-07.
- How severe is CVE-2026-17601?
- High severity. CVSS v3 base score is 7.2 out of 10.